Multiple Choice QuestionsWhich one of the following shows maximum genetic diversity in India?
Rice
Maize
Mango
Mango
Nitrifying bacteria
convert free nitrogen to nitrogen compounds
convert proteins into ammonia
reduce nitrates to free nitrogen
reduce nitrates to free nitrogen
Secondary sewage treatment is mainly a
mechanical process
chemical process
biological process
biological process
Which one of the following is not a biofertilizer
Rhizobium
Nostoc
Mycorrhiza
Mycorrhiza
Mass of living matter at a trophic level in an area at any time is called.
Detritus
Humus
Standing state
Standing state
What will you look for to identify the sex of the following?
male frog - a copulatory pad on the first digit of the hind limb
Female cock - anal cerci
Male shark - claspers borne on pelvic fins
Male shark - claspers borne on pelvic fins
C.
Male shark - claspers borne on pelvic fins
A clasper is a male anatomical structure found in some groups of animals, and used in mating. Male cartilaginous fish like shark hacve claspers formed from the posterior portion of their pelvic fin which serves as intromittent organs used to channel semane into the female's cloaca during mating.
A collection of plants and seeds having diverse alleles of all the genes of a crop is called
germplasm
gene library
genome
genome
The most common substrate used in distilleries for the production of ethanol is
soya meal
ground gram
molasses
molasses
Of the total incident solar radiation, the proportion of PAR is
about 60%
less than 50%
more than 80%
more than 80%
Ethanol is commercially produced through a particular species of
Clostridium
Trichoderma
Aspergillus
Aspergillus
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